
It's odd how your ears can learn 'where to look' for artifacts and from then on be tuned into them
( , Thu 22 Aug 2019, 0:14, Reply)

en.wikipedia.org/wiki/Cocktail_party_effect
also: www.vox.com/2015/3/4/8147377/mp3-compressed-ghosts
( , Thu 22 Aug 2019, 17:35, Reply)